<style>
  .sk-rotating-plane {
    width: 40px;
    height: 40px;
    background-color: #fff;
    -webkit-animation: sk-rotatePlane 1.2s infinite ease-in-out;
    animation: sk-rotatePlane 1.2s infinite ease-in-out;
  }

  @-webkit-keyframes sk-rotatePlane {
    0% {
      -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
      transform: perspective(120px) rotateX(0deg) rotateY(0deg);
    }
    50% {
      -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
      transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
    }
    100% {
      -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
      transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
    }
  }

  @keyframes sk-rotatePlane {
    0% {
      -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
      transform: perspective(120px) rotateX(0deg) rotateY(0deg);
    }
    50% {
      -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
      transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
    }
    100% {
      -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
      transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
    }
  }
</style>

<div class="sk-rotating-plane" />
